<template>
  <div>
    <div>
      <el-input style="width: 200px" placeholder="查询标题" v-model="title"></el-input>

      <el-button type="primary" style="margin-left: 10px" @click="load(1)">查询</el-button>
      <el-button type="info" @click="reset">重置</el-button>
    </div>
    <div style="margin: 10px 0">
      <el-button type="primary" plain @click="handleAdd">新增</el-button>
      <el-button type="danger" plain @click="delBatch">批量删除</el-button>

    </div>

    <el-table :data="tableData" stripe :header-cell-style="{backgroundColor:'aliceblue',color:'#333'}"
              @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/> <!--实现多选-->
      <el-table-column  prop="id" label="序号" align="center"></el-table-column>
      <el-table-column prop="title" label="标题"></el-table-column>
      <el-table-column prop="content" label="内容"></el-table-column>
      <el-table-column prop="user" label="发布人"></el-table-column>
      <el-table-column prop="time" label="发布时间"></el-table-column>
      <el-table-column prop="time" label="是否公开">
        <template v-slot="scope">
          <el-switch v-model="scope.row.open" @change="changeOpen(scope.row)"></el-switch>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" width="180">
        <template v-slot="scope">
          <el-button type="primary" plain size="mini" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button type="danger" plain size="mini" @click="del(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <div style="margin: 10px 0">
      <el-pagination
          @current-change="handleCurrentChange"
          :current-page="pageNum"
          :page-size="pageSize"
          layout="total,prev,pager,next"
          :total="total">
      </el-pagination>
    </div>
    <el-dialog title="公告信息" :visible.sync="fromVisible" width="40%" :close-on-click-modal="false">

      <el-form :model="form" label-width="80px" style="padding-right:20px" :rules="rules" ref="formRef">

        <el-form-item label="标题" prop="title">
          <el-input v-model="form.title" placeholder="标题"></el-input>
        </el-form-item>

        <el-form-item label="内容" prop="description">
          <el-input type="textarea" v-model="form.content" placeholder="内容"></el-input>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="fromVisible = false">取 消</el-button>
        <el-button type="primary" @click="save">确 定</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>


export default {
  name: "Notice",
  data() {
    return {
      tableData: [], //所有的数据
      pageNum: 1,  //当前的页数
      pageSize: 5,  //每页显示的数据
      username: '',
      title: '',
      total: 0,
      fromVisible: false,
      form: {},
      user: JSON.parse(localStorage.getItem("honey-user") || '{}'),
      rules: {
        title: [
          {required: true, message: "请输入标题", trigger: 'blur'},
        ],
        content: [
          {required: true, message: "请输入内容", trigger: 'blur'},
        ],
      },
      ids: [],

      content:'',

    }
  },
  created() {
    this.load()
  },
  methods: {
    changeOpen(form) {
      // 调用更新的接口  更新数据到数据库
      this.form = JSON.parse(JSON.stringify(form))
      this.sendSaveRequest()
    },


    delBatch() {
      if (this.ids.length === 0) {
        this.$message.warning("请选择数据")
        return
      }
      this.$confirm("您确认删除这些数据吗？", "确认删除", {type: "warning"}).then(response => {
        this.$request.delete('/notice/delete/batch/', {data: this.ids}).then(res => {
          if (res.code === '200') {
            this.$message.success("操作成功")
            this.load(1)
          } else {
            this.$message.error(res.msg)
          }
        })
      }).catch(() => {
      })

    },
    //当前选中的所有行信息
    handleSelectionChange(rows) {
      this.ids = rows.map(v => v.id)
    },
    del(id) {
      this.$confirm("您确认删除吗？", "确认删除", {type: "warning"}).then(response => {
        this.$request.delete('/notice/delete/' + id).then(res => {
          if (res.code === '200') {
            this.$message.success("操作成功")
            this.load(1)
          } else {
            this.$message.error(res.msg)
          }
        })
      }).catch(() => {
      })
    },
    //编辑方法
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row)) //给form对象赋值 要深拷贝数据
      this.fromVisible = true

    },
    //新增数据
    handleAdd() {
      this.form = {}
      this.fromVisible = true
    },
    //保存按钮触发逻辑 触发编辑或者新增
    save() {   // 保存按钮触发的逻辑  它会触发新增或者更新
      this.$refs.formRef.validate((valid) => {
        if (valid) {
          this.sendSaveRequest()
        }
      })
    },
    sendSaveRequest() {
      this.$request({
        url: this.form.id ? '/notice/update': '/notice/add',
        method: this.form.id ? 'PUT' : 'POST',
        data: this.form
      }).then(res => {
        if (res.code === '200') {  // 表示成功保存
          this.$message.success('保存成功')
          //this.load()
          this.fromVisible = false
        } else {
          this.$message.error(res.msg)  // 弹出错误的信息
        }
      })
    },
    reset() {
      this.title = ''
      this.load()
    },
    load(pageNum) {  // 分页查询
      /*if (pageNum) this.pageNum = pageNum
      this.$request.get('/notice/selectByPage', {
        params: {
          pageNum: this.pageNum,
          pageSize: this.pageSize,
          title: this.title
        }
      }).then(res => {
        this.tableData = res.data.records
        this.total = res.data.total
      })*/
        // 分页查询
        if (pageNum) this.pageNum = pageNum
        this.$request.get('/notice/selectByPage', {
          params: {
            pageNum: this.pageNum,
            pageSize: this.pageSize,
            title: this.title
          }
        }).then(res => {
          this.tableData = res.data.records.map(record => ({
            ...record,
            open: Boolean(record.open)  // 确保 open 是布尔值
          }));
          this.total = res.data.total
        })
    },
    handleCurrentChange(pageNum) {
      this.pageNum = pageNum
      this.load(pageNum)
    },
  }
}
</script>

<style scoped>
.el-tooltip__popper{ max-width:300px !important; }
</style>
